Patents by Inventor Paul H. Thomas

Paul H. Thomas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Garage door opener heater
    Patent number: 4792659
    Abstract: A garage door opener heater for use on garage doors to heat the drive track of the opener during cold weather to prevent binding and restricted movement of the track when the lubricates within the track solidify at cold temperatures.
    Type: Grant
    Filed: May 22, 1987
    Date of Patent: December 20, 1988
    Inventor: Paul H. Thomas